Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach thu » sach thue, sach thieu, sach tham
thu nang » thi nang, thu hang, thu bang
hieu van » hieu va, thien van, lieu va
van tham » van thanh, van tuan, van chat
tham duc » pham duc, tham du, than duc
hanh lai » hanh lam, thanh lap, thanh loi
hanh tai » thanh tai, hang tai, han tai
su sach » so sach, vu sach
duc ban » duc tan, duc van, dua ban
x hoi » xa hoi, o hoi, x ho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach thu nang x hoi. hieu van tham duc ban ((hanh lai) OR (hanh tai)) cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach thu nang x hoi. hieu van tham duc ban ((hanh lai) OR (hanh tai)) cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach thu nang x hoi. hieu van tham duc ban ((hanh lai) OR (hanh tai)) cua triet*.